Lemma

Trigonometry · Chapter 8 of 11

Laws of sines & cosines

4 curated · 22 from open sources

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#TitleDifficultyTags
122The third sideEasyLaw of cosines
697The law of sinesEasyLaws of sines & cosines
699Area from two sides and an angleEasyLaws of sines & cosines
701A cosine in the 3-4-5 triangleEasyLaws of sines & cosines

From open sources

22

Showing everything, including problems with no answer to check, a missing figure, or a near-copy elsewhere. Show only complete problems

#TitleDifficulty
104297Non-right Triangles: Law of Sines · Try It 1Easy
104301Finding the Area of an Oblique TriangleEasy
104303Non-right Triangles: Law of Sines · Exercise 1Easy
104305Non-right Triangles: Law of Sines · Exercise 3Easy
104343Non-right Triangles: Law of Cosines · Try It 1Easy
104345Non-right Triangles: Law of Cosines · Try It 2Easy
104351Non-right Triangles: Law of Cosines · Exercise 3Easy
104353Non-right Triangles: Law of Cosines · Exercise 5Easy
104298Non-right Triangles: Law of Sines · Try It 2Easy
104300Non-right Triangles: Law of Sines · Try It 3Easy
104302Non-right Triangles: Law of Sines · Try It 4Easy
104307Non-right Triangles: Law of Sines · Exercise 5Easy
104347Non-right Triangles: Law of Cosines · Try It 3Easy
104348Non-right Triangles: Law of Cosines · Try It 4Easy
104349Non-right Triangles: Law of Cosines · Exercise 1Easy
104299Finding the Triangles That Meet the Given CriteriaEasy
104304Non-right Triangles: Law of Sines · Exercise 2Easy
104306Non-right Triangles: Law of Sines · Exercise 4Easy
104344Solving for an Angle of a SSS TriangleEasy
104346Using the Law of Cosines to Solve a Communication ProblemEasy
104350Non-right Triangles: Law of Cosines · Exercise 2Easy
104352Non-right Triangles: Law of Cosines · Exercise 4Easy